JPH0741286U - cooling tower - Google Patents

Abstract

(57) [Summary] [Purpose] In a semi-sealed cooling tower that indirectly cools process water circulating in a refrigerator, etc., ensures a simple structure to separate process water and cooling water at the lower end of the packing material. A cooling tower that can be used for [Configuration] At the lower end of the cooling water passage and the process water passage,
Water receiving plates 25a and 25b for collecting cooling water or process water in one direction of the filling material 2 are provided, respectively, and the water receiving plates are inclined in directions opposite to each other in the cooling water passage and the process water passage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cooling tower, and more particularly, to a structure of a filler in a semi-hermetic cooling tower that indirectly cools process water circulating in a refrigerator or the like.

[0002]

[Prior art]

 Unlike the open type cooling tower, the closed type cooling tower does not contaminate the circulating water with the outside air and has a better heat exchange efficiency than the air cooling type heat exchanger. It is often used for refrigerators.

In such a closed cooling tower, a large number of filler sheets are laminated at a predetermined interval, and every other filler sheet is closed by a umbrella plate or a joint seal to allow process water to flow down. In addition to forming a process water passage in a state, a cooling water passage is formed on both sides of the process water passage to bring cooling water sprayed from above into contact with cooling air, and the cooling water flowing down the cooling water passage is used as outside air. There is known a semi-closed cooling tower in which the cooling water and the process water are directly contacted with each other to be cooled, and the process water is cooled by exchanging heat between the cooling water and the process water via a filler sheet (Japanese Patent Laid-Open No. 51- 100370, JP-A-3-177790, JP-A-3-175290, etc.).

In such a conventional semi-enclosed cooling tower, in order to separate the cooling water flowing down through the packing material and the process water, the process water side passage melts the peripheral portions of the two packing material sheets. It is worn to form a bag, and the lower end is inclined like a funnel so that the water is near the center, so that only process water is received.

[0005]

[Problems to be solved by the device]

 However, in the funnel-shaped water receiver as described above, the water receiver must be constructed with a 13 to 20 mm pitch of the laminated filler, and cooling is required from the fitting portion between the filler and the receiver. There was a drawback that water penetrated into the process water.

[0006] Therefore, an object of the present invention is to provide a cooling tower that can reliably separate process water and cooling water at the lower end of the packing material with a simple structure.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the cooling tower of the present invention is configured such that cooling water sprayed from above is directly contacted with cooling air between each packing sheet in which a large number of packing sheets are stacked at a predetermined interval. In a semi-closed type cooling tower using a filler having alternating passages and semi-closed process water passages through which process water flows, in the cooling water passages and the lower ends of the process water passages, cooling water or It is characterized in that each water receiving plate for collecting the process water in one direction of the packing material is provided, and the water receiving plate is inclined in directions opposite to each other in the cooling water passage and the process water passage.

[0008]

[Work]

 According to the above configuration, the cooling water flowing down the cooling water passage and the process water flowing down the process water passage are guided by the water receiving plate provided at the lower end of the packing material and collected on the side of the packing material. Further, since the water receiving plate is inclined in the directions opposite to each other in the cooling water passage and the process water passage, the cooling water and the process water are respectively collected at the lateral lower end portions in the opposite directions of the filler. Therefore, the cooling water and the process water can be reliably separated by providing the cooling water receiving portion on one side of the lower portion of the filler and the process water receiving portion on the other side.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a system diagram of a semi-enclosed cooling tower, FIG. 2 is a front view of a filler, and FIG. 3 is a sectional view taken along line III-III of FIG.

The semi-closed cooling tower 1 sprays cooling water to the filling material 2 from a cooling water sprinkling device 3 provided above the filling material 2, and a fan 5 provided at an exhaust port 4 in the upper center of Air is taken in from the air intake 6, the cooling water is cooled by bringing the cooling water into direct contact with the cooling water, and the cooled cooling water is heat-exchanged with the process water flowing through the semi-closed process water passage. It is configured to cool the process water.

The filling material 2 is formed by stacking a large number of filling material sheets 22 each having a convex portion 21 for maintaining a gap at predetermined intervals, and placing every one of the filling material sheets 22 at the top and both sides with a contact seal. However, the cooling water passages 23 for directly contacting the cooling water sprayed from above with the cooling air and the semi-closed process water passages 24 through which the process water flows down are alternately formed.

At the lower ends of both passages 23, 24, water receiving plates 25 a, 25 b for collecting cooling water or process water flowing down in the passages 23, 24 in one direction of the filling material 2 are provided. ing. The water receiving plates 25a and 25b are watertightly attached to the filler sheets 22 on both sides by means such as fusion, adhesion, and fitting, and the cooling water passage 23 and the process water passage 24 collect water. The water receiving plates 25a and 25b are provided so that the directions are opposite to each other, that is, the water receiving plates 25a and 25b are inclined in opposite directions.

Therefore, the cooling water flowing through the cooling water passage 23 flows out to the cooling water tank 27a from the cooling water outlet 26a located on the lower left side of the filling material 2 in FIG. The process water flowing through 24 flows out to the process water tank 27b from the process water outlet 26b located at the lower right side of the filler 2 in FIG. 1 by the water receiving plate 25b.

That is, the cooling water sprayed from the cooling water spraying device 3 and flowing down the cooling water passage 23 of the filler 2 is collected by the water receiving plate 25a and flows out from the cooling water outlet 26a to the cooling water tank 27a. The cooling water circulating pump 7 circulates the cooling water circulating device 3 to the cooling water spraying device 3.

One of the process waters is sent from the process water tank 27b to the cooled device 9 such as a refrigerator by the process water circulation pump 8, and the process water which is cooled by heating the device 9 is heated through the header pipe 10. It is sprayed to the process water passage 24 from the process water spray pipe 11 inserted in the upper part of the process water passage 24. The process water flowing down in the process water passage 24 is collected by the water receiving plate 25b, flows out from the cooling water outlet 26b in the opposite direction to the cooling water to the process water tank 27b, and circulates in the above path.

The cooling water and the process water are replenished through the replenishment pipes 12a and 12b and the ball taps 13a and 13b, respectively.

In this way, the cooling water and the process water flow out from the filler 2 by flowing out the cooling water and the process water from the lower portion on the opposite side of the filler 2 by the respective water receiving plates 25a and 25b. The water tank 27 can be separated into a cooling water tank 27a and a process water tank 27b simply by providing the partition 27c in the water tank 27 as described above.

Further, both the water receiving plates 25a and 25b may be integrally joined when the filler sheet 22 is laminated and the filler 2 is manufactured, and the filler is manufactured by a simpler procedure than before. can do.

[0019]

[Effect of device]

 As described above, in the cooling tower of the present invention, the cooling water and the process water can be easily and reliably separated by the water receiving plates provided in the cooling water passage and the process water passage. The structure is simplified and the manufacturing becomes easy.

[Brief description of drawings]

FIG. 1 is a system diagram of a semi-closed cooling tower showing an embodiment of the present invention.

FIG. 2 is a front view of a filler.

3 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Semi-closed cooling tower, 2 ... Filler, 3 ... Cooling water distribution device, 4 ... Exhaust port, 6 ... Air inlet, 11 ... Process water distribution pipe, 22 ... Filler sheet, 23 ... Cooling water passage, 24 ...
Process water passage, 25a, 25b ... Water receiving plate, 26a ... Cooling water outlet, 26b ... Process water outlet, 27a ... Cooling water tank, 27b ... Process water tank

Claims (1)

[Scope of utility model registration request] 1. A cooling water passage for directly contacting cooling water, which is sprayed from above, with cooling air, and a semi-closed passage through which process water flows down, between each of the filler sheets in which a large number of filler sheets are laminated at predetermined intervals. In a semi-closed cooling tower using a filler having alternating process water passages in a state, cooling water or process water is collected in one direction of the filler at the lower ends of the cooling water passage and the process water passage. Cooling tower, wherein each water receiving plate is provided, and the water receiving plate is inclined in directions opposite to each other in the cooling water passage and the process water passage.